Quite right! I have to admit to trying to give up smoking about 20 times. Eventually I succeeded with the help of an electronic cigarette (to get off the nicotine but still have the habit of hand-to-mouth) and then got off that (which was easier now the nicotine was out of my system).
It still took sheer bloody-mindedness though and even years down the track you sill get the occasional craving.
Exactly, it’s war in your mind against yourself that you gotta beat. It’s fucking crazy how sometimes you have sleepless nights because of that.